Although there are no sarcomeres, smooth muscle still possesses thick and thin filaments
Indicate whether the statement is true or false
TRUE
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Which muscle pulls the pinky finger away from the other fingers?
A. Dorsal interossei B. Abductor digiti minimi C. Opponens digiti minimi D. Lumbricals E. Opponens pollicis
Which of the following statements about the first trimester is false?
A) The events that occur during the first trimester are very complex. B) Only about 40 percent of conceptions survive the first trimester. C) During this trimester, cleavage, implantation, placentation and embryogenesis occur. D) The fetus gains the most weight during the first trimester. E) It consists of 10 developmental weeks.
What happens when the diaphragm contracts?
A. The size of the thoracic cavity decreases and air flows into the lungs. B. The size of the thoracic cavity decreases and air pressure in the thorax drops. C. The size of the thoracic cavity increases and air flows out of the lungs. D. The size of the thoracic cavity increases and air pressure in the thorax increases. E. The size of the thoracic cavity increases and air flows into the lungs.
Simple squamous epithelium is an example of a(n)
A) organ system. B) molecule. C) organ. D) tissue.